css animation when appear code example

Example 1: css animation

CSS animation properties template:
{
   animation-name: anima-name;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    animation-delay: 2s;
    animation-direction: reverse | normal | alternate | alternate-reverse ; 
  animation-timing-function: ease | ease-out | ease-in | ease-in-out | linear | cubic-bezier(x1, y1, x2, y2) (e.g. cubic-bezier(0.5, 0.2, 0.3, 1.0)); 
  animation-fill-mode:forwards | backwards | both | none;
}
@keyframes anima-name {
  from {
   background-position:right;
  }
  to {
    background-position:left;
  }
}
@keyframes anima-name {
  0% {
    background-color: red;
  }
  50% {
    background-color: green;
  }
  100% {
    background-color: red;
  }
}

Example 2: animation in css

<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background-color: red;
  position: relative;
  animation: myfirst 5s linear 2s infinite alternate;
}
@keyframes myfirst {
  0%   {background-color:red; left:0px; top:0px;}
  25%  {background-color:yellow; left:200px; top:0px;}
  50%  {background-color:blue; left:200px; top:200px;}
  75%  {background-color:green; left:0px; top:200px;}
  100% {background-color:red; left:0px; top:0px;}
}
</style>
</head>
<body>

<p><b>Note:</b> This example does not work in Internet Explorer 9 and earlier versions.</p>

<div><p>you can add text in this box or anithing else like a pictrue</p></div>

</body>

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Html Example